Like a Seabob for learners (and at a tiny fraction of the price) the Sea Scooter is an altogether more relaxed affair. With enough thrust to propel you at speeds of up to a hair-scorching 2.2mph it's unlikely to have you arrested by the river cops. In fact, you'll be lucky if you can even overtake the fish. But for £100 and the opportunity to feel like James Bond, we're not about to complain.
It'll take you down to a depth of 3m (which is actually deeper than you think) and a full spurt of juice from the battery will give you 50 minutes of sub-aqua adventuring.
Reef Rider Sea Scooter
On sale: Now